Preventing the formation of scaling in the water cycle

Abstract

The problems of scaling in the cooling equipment of synthetic ammonia production. Theoretical and experimental study on the choice of a method of preventing the formation of scale (scale formation). Shows a diagram of connections with anti-scale methods of thermal resistance, given the physico-chemical phenomena at the ground level of functioning of chemical engineering systems and properties of water-technological system (PTS). Selected reagent method using complexing to control scaling in heat exchange equipment at low degrees of supersaturation crystallizing systems. The boundaries and applicability of formal statistical models in the description of the Cree-crystallization of sparingly soluble salts from solutions through the formation of the nuclear complex. On the basis of theoretical and experimental studies determined the dose and conditions of entry-hydroxyethyl reagent denfosfonovoy acid (HEDP) and its zinc complex Zn-HEDP in vodoobo-cycle company commander in the production of synthetic ammonia (branch "Nitrogen" of "UCC" URALCHEM"). Presents chemical compositions of sediments and the results of processing the back of the cooling water solutions HEDP, which increased performance capacitor turbocharger syngas to normative values.

Keywords

scale deposition / heat transfer equipment / chelators / water rotation cycle

RIGHTS & PERMISSIONS

Kulikov M.A., Kozlov S.G., Bulatov M.A., Zyukov E.A.